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Merge branch 'loadingScreen_initialdrawcallback' into 'master'

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Clean up use of initial draw callback in loadingscreen

See merge request OpenMW/openmw!472
This commit is contained in:
AnyOldName3 2020-12-16 22:10:03 +00:00
commit 70bd9d395d
2 changed files with 14 additions and 8 deletions
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20
apps/openmw/mwgui/loadingscreen.cpp
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@ -137,15 +137,11 @@ namespace MWGui
public:
CopyFramebufferToTextureCallback(osg::Texture2D* texture)
: mTexture(texture)
, oneshot(true)
{
}
void operator () (osg::RenderInfo& renderInfo) const override
{
if (!oneshot)
return;
oneshot = false;
int w = renderInfo.getCurrentCamera()->getViewport()->width();
int h = renderInfo.getCurrentCamera()->getViewport()->height();
mTexture->copyTexImage2D(*renderInfo.getState(), 0, 0, w, h);
@ -153,7 +149,6 @@ namespace MWGui
private:
osg::ref_ptr<osg::Texture2D> mTexture;
mutable bool oneshot;
};
class DontComputeBoundCallback : public osg::Node::ComputeBoundingSphereCallback
@ -322,9 +317,12 @@ namespace MWGui
mGuiTexture.reset(new osgMyGUI::OSGTexture(mTexture));
}
// Notice that the next time this is called, the current CopyFramebufferToTextureCallback will be deleted
// so there's no memory leak as at most one object of type CopyFramebufferToTextureCallback is allocated at a time.
mViewer->getCamera()->setInitialDrawCallback(new CopyFramebufferToTextureCallback(mTexture));
if (!mCopyFramebufferToTextureCallback)
{
mCopyFramebufferToTextureCallback = new CopyFramebufferToTextureCallback(mTexture);
}
mViewer->getCamera()->addInitialDrawCallback(mCopyFramebufferToTextureCallback);
mBackgroundImage->setBackgroundImage("");
mBackgroundImage->setVisible(false);
@ -367,6 +365,12 @@ namespace MWGui
mViewer->renderingTraversals();
mViewer->advance(mViewer->getFrameStamp()->getSimulationTime());
if (mCopyFramebufferToTextureCallback)
{
mViewer->getCamera()->removeInitialDrawCallback(mCopyFramebufferToTextureCallback);
mCopyFramebufferToTextureCallback = nullptr;
}
mLastRenderTime = mTimer.time_m();
}

2
apps/openmw/mwgui/loadingscreen.hpp
View file

@ -28,6 +28,7 @@ namespace Resource
namespace MWGui
{
class BackgroundImage;
class CopyFramebufferToTextureCallback;
class LoadingScreen : public WindowBase, public Loading::Listener
{
@ -84,6 +85,7 @@ namespace MWGui
std::vector<std::string> mSplashScreens;
osg::ref_ptr<osg::Texture2D> mTexture;
osg::ref_ptr<CopyFramebufferToTextureCallback> mCopyFramebufferToTextureCallback;
std::unique_ptr<MyGUI::ITexture> mGuiTexture;
void changeWallpaper();